I bought the suspension for my 2012 335is with the M sport suspension and have decided that I am not going to buy the car at lease end; thus, it doesnt make sense to install the suspension. Suspension has not even been unpacked from the box. I paid $1,500 delivered, asking $1,100 with free continental US shipping.

Out of curiostiy, what is the difference between these and what is already installed on 335is?

The struts have more damping and the springs are shorter and about 25% stiffer. The swaybars are also a little thicker.

My issue with the stock 335is suspension is that it floats more than I like at higher speeds. One of my other cars has a dinan suspension and my track car has a TCKline DA Coil over; therefore, i am just used to a better planted car.

The performance suspension seemed like the right suspension for a daily driver...i have just decided that I am not going to keep the car at lease end and dont want to install and then uninstall

The struts have more damping and the springs are shorter and about 25% stiffer. The swaybars are also a little thicker.

My issue with the stock 335is suspension is that it floats more than I like at higher speeds. One of my other cars has a dinan suspension and my track car has a TCKline DA Coil over; therefore, i am just used to a better planted car.

The performance suspension seemed like the right suspension for a daily driver...i have just decided that I am not going to keep the car at lease end and dont want to install and then uninstall

Thanks, I tend to agree with you that IS suspension seems a bit floaty, particularly in the rear.. My old e90 with sports package felt much more stable on bumpy roads. This would be nice package, but unfortunately other things take priority now.